Tetrasialoganglioside GO1b reactive monoclonal antibodies: their characterization and application for quantification of GQ1b in some cell lines of neuronal and adrenal origin(s).

abstract：:Two semisynthetic acetyl derivatives of the alkaloid sauroine from Huperzia saururus, monoacetyl sauroine, and diacetyl sauroine (DAS) were obtained and their chemical structures were analyzed by NMR. While monoacetyl sauroine is the typical product of acetylation, DAS is an unexpected derivative related to the keto-e...

journal_title：Journal of neurochemistry

authors： Vallejo M,Loyola S,Contreras D,Ugarte G,Cifuente D,Ortega G,Cabrera JL,Zeise M,Tonn C,Carreño M,Delgado R,Morales B,Agnese M

更新日期：2014-06-01 00:00:00

abstract：:We have examined the ability of KW-6002, an adenosine A2a antagonist, to modulate the dyskinetic effects of L-DOPA in 6-hydroxydopamine-lesioned rats. In animals rendered dyskinetic by a previous course of L-DOPA treatment, KW-6002 did not elicit any abnormal involuntary movements on its own, but failed to reduce the ...

journal_title：Journal of neurochemistry

authors： Lundblad M,Vaudano E,Cenci MA

更新日期：2003-03-01 00:00:00

abstract：:Abstract Dorfin is a RING-finger type ubiquitin ligase for mutant superoxide dismutase 1 (SOD1) that enhances its degradation. Mutant SOD1s cause familial amyotrophic lateral sclerosis (FALS) through the gain of unelucidated toxic properties. We previously showed that the accumulation of mutant SOD1 in the mitochondri...

journal_title：Journal of neurochemistry

authors： Takeuchi H,Niwa J,Hishikawa N,Ishigaki S,Tanaka F,Doyu M,Sobue G

更新日期：2004-04-01 00:00:00

abstract：:The effects of ATP and taurine on the kinetics of calcium uptake in rat retinal membrane preparations were determined. ATP increased calcium uptake at low calcium ion concentrations. Addition of ATP plus taurine further increased calcium uptake. Cooperative relationships were observed for calcium uptake in the absence...

journal_title：Journal of neurochemistry

authors： Lombardini JB

更新日期：1983-02-01 00:00:00

abstract：:To examine whether the concentration gradient of glutamine (Gln) drives concentrative Na(+)-independent uptake of neutral amino acids (NAA) in mouse cerebral astrocytes, uptake was compared in "Gln-depleted" and "Gln-replete" cultures. Uptake (30 min in Na(+)-free buffer) of histidine, kynurenine, leucine, tyrosine, a...

journal_title：Journal of neurochemistry

authors： Brookes N

更新日期：1992-07-01 00:00:00

abstract：:The formation of long-term memory has been shown to require protein kinase-mediated gene expression. One such kinase, mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK), can lead to the phosphorylation of serum response factor (SRF) and Elk-1, enhancing the expression of target genes. Ho...

journal_title：Journal of neurochemistry

authors： Dash PK,Orsi SA,Moore AN

更新日期：2005-04-01 00:00:00

abstract：:The cholesterol esterifying enzyme which incorporates exogenous free [1-14C]oleate into cholesteryl ester is present in rat sciatic endoneurium. Cholesterol esterification is optimal at pH 4.8. Exogenous ATP, CoA, and oleyl-CoA do not greatly affect its activity. Various detergents and bile salts are inhibitory. Enzym...

journal_title：Journal of neurochemistry

authors： Yao JK,Dyck PJ

更新日期：1981-07-01 00:00:00

abstract：:We have studied the responsiveness of vascular adenylate cyclase to vasoactive intestinal peptide (VIP) and parathyroid hormone (PTH) using preparations of cerebral microvessels and arteries. Cerebral microvessels obtained from rats, guinea-pigs, cattle, and pigs all responded potently to bovine (b) PTH-(1-34), wherea...

journal_title：Journal of neurochemistry

authors： Huang M,Rorstad OP

更新日期：1984-09-01 00:00:00

abstract：:Certain non-steroidal anti-inflammatory drugs (NSAIDs) preferentially inhibit production of the amyloidogenic Abeta42 peptide, presumably by direct modulation of gamma-secretase activity. A recent report indicated that NSAIDs could reduce Abeta42 by inhibition of the small GTPase Rho, and a single inhibitor of Rho kin...

journal_title：Journal of neurochemistry

authors： Leuchtenberger S,Kummer MP,Kukar T,Czirr E,Teusch N,Sagi SA,Berdeaux R,Pietrzik CU,Ladd TB,Golde TE,Koo EH,Weggen S

更新日期：2006-01-01 00:00:00

abstract：:Recombinant RGS1, RGS16 and RGS-GAIP, but not RGS2, were able to substantially further stimulate the maximal GTPase activity of G(o1)alpha promoted by agonists at the alpha2A-adrenoreceptor in a concentration-dependent manner. Kinetic analysis of the regulation of an alpha2A-adrenoreceptor-G(o1)alpha fusion protein by...

journal_title：Journal of neurochemistry

authors： Hoffmann M,Ward RJ,Cavalli A,Carr IC,Milligan G

更新日期：2001-08-01 00:00:00

abstract：:alpha-Conotoxins interact with nicotinic acetylcholine receptors (nAChRs) and acetylcholine-binding proteins (AChBPs) at the sites for agonists/competitive antagonists. alpha-Conotoxins blocking muscle-type or alpha7 nAChRs compete with alpha-bungarotoxin. However, alpha-conotoxin ImII, a close homolog of the alpha7 n...

journal_title：Journal of neurochemistry

authors： Kasheverov IE,Zhmak MN,Fish A,Rucktooa P,Khruschov AY,Osipov AV,Ziganshin RH,D'hoedt D,Bertrand D,Sixma TK,Smit AB,Tsetlin VI

更新日期：2009-11-01 00:00:00

abstract：:In the early postnatal period, energy metabolism in the suckling rodent brain relies to a large extent on metabolic pathways alternate to glucose such as the utilization of ketone bodies (KBs). However, how KBs affect neuronal excitability is not known. Using recordings of single NMDA and GABA-activated channels in ne...

journal_title：Journal of neurochemistry

authors： Rheims S,Holmgren CD,Chazal G,Mulder J,Harkany T,Zilberter T,Zilberter Y

更新日期：2009-08-01 00:00:00

abstract：:Inducible expression of the group-I metabotropic glutamate receptor (mGlu1alpha) in Chinese hamster ovary cells allows for the study of receptor density dependent effects. However, expression levels attainable with this system are lower than those reported for various brain regions and achieved by conventional (consti...

journal_title：Journal of neurochemistry

authors： Nash MS,Selkirk JV,Gaymer CE,Challiss RA,Nahorski SR

更新日期：2001-06-01 00:00:00

abstract：:Previous work from our laboratory points to plasma free tryptophan being a useful predictor of brain tryptophan concentration in many circumstances. Other work, in particular various studies on the acute effects of food intake, has emphasized the roles of plasma total tryptophan and of plasma large neutral amino acids...

journal_title：Journal of neurochemistry

authors： Sarna GS,Kantamaneni BD,Curzon G

更新日期：1985-05-01 00:00:00

abstract：:TrkA is a receptor tyrosine kinase for nerve growth factor (NGF). Recent studies indicate that NGF regulates not only activation of trkA kinase but also expression of the trkA gene. To further define NGF actions on trkA, we examined binding and signaling through trkA after both short and long intervals of NGF treatmen...

journal_title：Journal of neurochemistry

authors： Zhou J,Valletta JS,Grimes ML,Mobley WC

更新日期：1995-09-01 00:00:00

abstract：:Gangliosides administered exogenously are well-known effectors of differentiation in many neuroblastoma lines and primary neuronal cultures. Previous studies suggested the phosphoinositide signaling mechanism could be a contributing factor. We have found that treatment of Neuro-2A cells with bovine brain ganglioside m...

journal_title：Journal of neurochemistry

authors： Vaswani KK,Wu GS,Ledeen RW

更新日期：1990-08-01 00:00:00

abstract：:A simple radioenzymatic method for the determination of DOPA is described. The method is based on the conversion of DOPA to 3-O-[methyl-3H]DOPA by catechol-O-methyltransferase in the presence of S-adenosyl-[methyl-3H]methionine and purification of the labelled product by Sephadex G10 and Dowex 50 W x 4 ion exchange re...

journal_title：Journal of neurochemistry

authors： Argiolas A,Gessa GL

更新日期：1981-01-01 00:00:00

abstract：:This study evaluated the developmental gene and protein expression of proton-coupled oligopeptide transporters (POTs: peptide transporter, PepT1 and PepT2; peptide-histidine transporter, PhT1 and PhT2) in different regions of rodent brain, and the age-dependent uptake of a POT substrate, glycylsarcosine (GlySar), in b...

journal_title：Journal of neurochemistry

authors： Hu Y,Xie Y,Keep RF,Smith DE

更新日期：2014-06-01 00:00:00

abstract：:This study examined the hypothesis that chronic ethanol consumption results in significant abnormalities in both the dopaminergic and the serotonergic system of aged rats. Levels of dopamine (DA), serotonin [5-hydroxytryptamine (5-HT)], 3,4-dihydroxyphenylacetic acid (DOPAC), and 5-hydroxyindole-3-acetic acid (5-HIAA)...

journal_title：Journal of neurochemistry

authors： Woods JM,Druse MJ

更新日期：1996-05-01 00:00:00

abstract：:Axonal transport of glycoconjugates was studied in the motoneurons of rat sciatic nerve following injection of [3H]glucosamine into the lumbosacral spinal cord. After varying time intervals, the sciatic nerve was exposed, and two ligatures were tied for collection of materials undergoing anterograde and retrograde tra...

journal_title：Journal of neurochemistry

authors： Aquino DA,Bisby MA,Ledeen RW

更新日期：1985-10-01 00:00:00

abstract：:The concentration of dopamine (DA) in the synaptic cleft in the mouse striatum in vivo was estimated from the competition between the synaptic DA and the 3H-labelled DA D2 receptor agonists N-n-propylnorapomorphine (NPA) or N,N-diethyl-N'-[(3 alpha, 4a alpha, 10 beta)-1,2,3,4,4a,5,10,10a-octahydro- 7-hydroxyl-1-propyl...

journal_title：Journal of neurochemistry

authors： Ross SB

更新日期：1991-01-01 00:00:00

abstract：:Diminished energy metabolism and reduced activity of brain alpha-ketoglutarate dehydrogenase complex (KGDHC) occur in a number of neurodegenerative diseases. The relation between diminished KGDHC activity and altered energy metabolism is unknown. The present study tested whether a reduction in the KGDHC activity would...

journal_title：Journal of neurochemistry

authors： Shi Q,Risa Ø,Sonnewald U,Gibson GE

更新日期：2009-05-01 00:00:00

abstract：:Frontotemporal lobar degeneration (FTLD) is the second leading cause of dementia in individuals under age 65. In many patients, the predominant pathology includes neuronal cytoplasmic or intranuclear inclusions of ubiquitinated TAR DNA binding protein 43 (FTLD-TDP). Recently, a genome-wide association study identified...

journal_title：Journal of neurochemistry

authors： Nicholson AM,Finch NA,Wojtas A,Baker MC,Perkerson RB 3rd,Castanedes-Casey M,Rousseau L,Benussi L,Binetti G,Ghidoni R,Hsiung GY,Mackenzie IR,Finger E,Boeve BF,Ertekin-Taner N,Graff-Radford NR,Dickson DW,Rademakers R

更新日期：2013-09-01 00:00:00

abstract：:The characteristics of glycosylation of a brain-specific glycoprotein, 1D4 antigen, and the epitope recognized by its monoclonal antibody were studied. Removal of high-mannose and hybrid types of N-linked oligosaccharides by treatment with endoglycosidase H converted the molecular mass of the 1D4 antigen from 89 kDa t...

journal_title：Journal of neurochemistry

authors： Sano S,Ito S,Nakamura M,Nakagawa H

更新日期：1990-10-01 00:00:00

abstract：:This paper describes a new, sensitive assay for dopamine-beta-hydroxylase (DBH) activity in human cerebrospinal fluid (CSF), serum and brain tissues by high performance liquid chromatography (HPLC) with electrochemical detection (ED). Dopamine (DA) was used as a substrate and was incubated under optimal conditions. No...

journal_title：Journal of neurochemistry

authors： Matsui H,Kato T,Yamamoto C,Fujita K,Nagatsu T

更新日期：1981-08-01 00:00:00

abstract：:In heterologous expression systems, dopamine transporter (DAT) cell-surface localization is reduced after relatively prolonged exposure to d-amphetamine (AMPH) or dopamine (DA), suggesting a role for substrate-mediated regulation of transporter function. Here, we investigated whether brief, repeated periods of substra...

journal_title：Journal of neurochemistry

authors： Gulley JM,Doolen S,Zahniser NR

更新日期：2002-10-01 00:00:00

abstract：:In one 21-week-old fetus with prenatally diagnosed metachromatic leukodystrophy, galactolipid contents were determined in the forebrain cortex, cerebellum, brainstem, spinal cord, and kidney and compared to an appropriate control. Spinal cord and kidney showed the highest sulfatide accumulation as a consequence of def...

journal_title：Journal of neurochemistry

authors： Baier W,Harzer K

更新日期：1983-12-01 00:00:00

abstract：:The mouse myelin proteolipid protein (PLP) gene has been studied in normal and jimpymsd mice. Potential upstream regulatory regions of the normal gene have been cloned and mapped, but when these regions were studied in jimpymsd mice by Southern blots, no alterations were observed, relative to the normal gene. To asses...

journal_title：Journal of neurochemistry

authors： Macklin WB,Gardinier MV,Obeso ZO,King KD,Wight PA

更新日期：1991-01-01 00:00:00

abstract：:G-protein coupled receptors may mediate their effects on neuronal growth and differentiation through activation of extracellular signal-regulated kinases 1/2 (ERK1/2), often elicited by transactivation of growth factor receptor tyrosine kinases. This elaborate signaling process includes inducible formation and traffic...

journal_title：Journal of neurochemistry

authors： Asimaki O,Leondaritis G,Lois G,Sakellaridis N,Mangoura D

更新日期：2011-03-01 00:00:00

abstract：:Tomosyn is a cytoplasmic protein that was shown to bind to Syntaxin1 and SNAP-25 through an R-SNARE domain, forming a complex that is almost identical in structure to the neuronal SNARE complex. Tomosyn inhibits exocytosis in various cell types and these effects were attributed to direct competition between tomosyn's ...

journal_title：Journal of neurochemistry

authors： Yizhar O,Lipstein N,Gladycheva SE,Matti U,Ernst SA,Rettig J,Stuenkel EL,Ashery U

更新日期：2007-10-01 00:00:00